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<div class="refentry" title="Basic Types">
<a name="glib-Basic-Types"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="glib-Basic-Types.top_of_page"></a>Basic Types</span></h2>
<p>Basic Types — standard GLib types, defined for ease-of-use and portability</p>
</td>
<td valign="top" align="right"></td>
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<div class="refsynopsisdiv" title="Synopsis">
<a name="glib-Basic-Types.synopsis"></a><h2>Synopsis</h2>
<pre class="synopsis">
#include &lt;glib.h&gt;

typedef             <a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean">gboolean</a>;
typedef             <a class="link" href="glib-Basic-Types.html#gpointer" title="gpointer">gpointer</a>;
typedef             <a class="link" href="glib-Basic-Types.html#gconstpointer" title="gconstpointer">gconstpointer</a>;
typedef             <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a>;
typedef             <a class="link" href="glib-Basic-Types.html#guchar" title="guchar">guchar</a>;

typedef             <a class="link" href="glib-Basic-Types.html#gint" title="gint">gint</a>;
typedef             <a class="link" href="glib-Basic-Types.html#guint" title="guint">guint</a>;
typedef             <a class="link" href="glib-Basic-Types.html#gshort" title="gshort">gshort</a>;
typedef             <a class="link" href="glib-Basic-Types.html#gushort" title="gushort">gushort</a>;
typedef             <a class="link" href="glib-Basic-Types.html#glong" title="glong">glong</a>;
typedef             <a class="link" href="glib-Basic-Types.html#gulong" title="gulong">gulong</a>;

typedef             <a class="link" href="glib-Basic-Types.html#gint8" title="gint8">gint8</a>;
typedef             <a class="link" href="glib-Basic-Types.html#guint8" title="guint8">guint8</a>;
typedef             <a class="link" href="glib-Basic-Types.html#gint16" title="gint16">gint16</a>;
typedef             <a class="link" href="glib-Basic-Types.html#guint16" title="guint16">guint16</a>;
typedef             <a class="link" href="glib-Basic-Types.html#gint32" title="gint32">gint32</a>;
typedef             <a class="link" href="glib-Basic-Types.html#guint32" title="guint32">guint32</a>;

#define             <a class="link" href="glib-Basic-Types.html#G-HAVE-GINT64:CAPS" title="G_HAVE_GINT64">G_HAVE_GINT64</a>
typedef             <a class="link" href="glib-Basic-Types.html#gint64" title="gint64">gint64</a>;
typedef             <a class="link" href="glib-Basic-Types.html#guint64" title="guint64">guint64</a>;
#define             <a class="link" href="glib-Basic-Types.html#G-GINT64-CONSTANT:CAPS" title="G_GINT64_CONSTANT()">G_GINT64_CONSTANT</a>                   (val)
#define             <a class="link" href="glib-Basic-Types.html#G-GUINT64-CONSTANT:CAPS" title="G_GUINT64_CONSTANT()">G_GUINT64_CONSTANT</a>                  (val)

typedef             <a class="link" href="glib-Basic-Types.html#gfloat" title="gfloat">gfloat</a>;
typedef             <a class="link" href="glib-Basic-Types.html#gdouble" title="gdouble">gdouble</a>;

typedef             <a class="link" href="glib-Basic-Types.html#gsize" title="gsize">gsize</a>;
typedef             <a class="link" href="glib-Basic-Types.html#gssize" title="gssize">gssize</a>;
typedef             <a class="link" href="glib-Basic-Types.html#goffset" title="goffset">goffset</a>;
#define             <a class="link" href="glib-Basic-Types.html#G-GOFFSET-CONSTANT:CAPS" title="G_GOFFSET_CONSTANT()">G_GOFFSET_CONSTANT</a>                  (val)

typedef             <a class="link" href="glib-Basic-Types.html#gintptr" title="gintptr">gintptr</a>;
typedef             <a class="link" href="glib-Basic-Types.html#guintptr" title="guintptr">guintptr</a>;
</pre>
</div>
<div class="refsect1" title="Description">
<a name="glib-Basic-Types.description"></a><h2>Description</h2>
<p>
GLib defines a number of commonly used types, which can be divided into
4 groups:
</p>
<div class="itemizedlist"><ul class="itemizedlist" type="disc">
<li class="listitem"><p>
New types which are not part of standard C (but are defined
in various C standard library header files) -
<a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean"><span class="type">gboolean</span></a>, <a class="link" href="glib-Basic-Types.html#gsize" title="gsize"><span class="type">gsize</span></a>, <a class="link" href="glib-Basic-Types.html#gssize" title="gssize"><span class="type">gssize</span></a>, <a class="link" href="glib-Basic-Types.html#goffset" title="goffset"><span class="type">goffset</span></a>, <a class="link" href="glib-Basic-Types.html#gintptr" title="gintptr"><span class="type">gintptr</span></a>, <a class="link" href="glib-Basic-Types.html#guintptr" title="guintptr"><span class="type">guintptr</span></a>.
</p></li>
<li class="listitem"><p>
Integer types which are guaranteed to be the same size across all platforms -
<a class="link" href="glib-Basic-Types.html#gint8" title="gint8"><span class="type">gint8</span></a>, <a class="link" href="glib-Basic-Types.html#guint8" title="guint8"><span class="type">guint8</span></a>, <a class="link" href="glib-Basic-Types.html#gint16" title="gint16"><span class="type">gint16</span></a>, <a class="link" href="glib-Basic-Types.html#guint16" title="guint16"><span class="type">guint16</span></a>, <a class="link" href="glib-Basic-Types.html#gint32" title="gint32"><span class="type">gint32</span></a>, <a class="link" href="glib-Basic-Types.html#guint32" title="guint32"><span class="type">guint32</span></a>, <a class="link" href="glib-Basic-Types.html#gint64" title="gint64"><span class="type">gint64</span></a>, <a class="link" href="glib-Basic-Types.html#guint64" title="guint64"><span class="type">guint64</span></a>.
</p></li>
<li class="listitem"><p>
Types which are easier to use than their standard C counterparts -
<a class="link" href="glib-Basic-Types.html#gpointer" title="gpointer"><span class="type">gpointer</span></a>, <a class="link" href="glib-Basic-Types.html#gconstpointer" title="gconstpointer"><span class="type">gconstpointer</span></a>, <a class="link" href="glib-Basic-Types.html#guchar" title="guchar"><span class="type">guchar</span></a>, <a class="link" href="glib-Basic-Types.html#guint" title="guint"><span class="type">guint</span></a>, <a class="link" href="glib-Basic-Types.html#gushort" title="gushort"><span class="type">gushort</span></a>, <a class="link" href="glib-Basic-Types.html#gulong" title="gulong"><span class="type">gulong</span></a>.
</p></li>
<li class="listitem"><p>
Types which correspond exactly to standard C types, but are included
for completeness - <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a>, <a class="link" href="glib-Basic-Types.html#gint" title="gint"><span class="type">gint</span></a>, <a class="link" href="glib-Basic-Types.html#gshort" title="gshort"><span class="type">gshort</span></a>, <a class="link" href="glib-Basic-Types.html#glong" title="glong"><span class="type">glong</span></a>, <a class="link" href="glib-Basic-Types.html#gfloat" title="gfloat"><span class="type">gfloat</span></a>, <a class="link" href="glib-Basic-Types.html#gdouble" title="gdouble"><span class="type">gdouble</span></a>.
</p></li>
</ul></div>
<p>
</p>
</div>
<div class="refsect1" title="Details">
<a name="glib-Basic-Types.details"></a><h2>Details</h2>
<div class="refsect2" title="gboolean">
<a name="gboolean"></a><h3>gboolean</h3>
<pre class="programlisting">typedef gint   gboolean;
</pre>
<p>
A standard <span class="type">boolean</span> type.
Variables of this type should only contain the value <a class="link" href="glib-Standard-Macros.html#TRUE:CAPS" title="TRUE"><code class="literal">TRUE</code></a> or <a class="link" href="glib-Standard-Macros.html#FALSE:CAPS" title="FALSE"><code class="literal">FALSE</code></a>.
</p>
</div>
<hr>
<div class="refsect2" title="gpointer">
<a name="gpointer"></a><h3>gpointer</h3>
<pre class="programlisting">typedef void* gpointer;
</pre>
<p>
An untyped pointer.
<a class="link" href="glib-Basic-Types.html#gpointer" title="gpointer"><span class="type">gpointer</span></a> looks better and is easier to use than <span class="type">void*</span>.
</p>
</div>
<hr>
<div class="refsect2" title="gconstpointer">
<a name="gconstpointer"></a><h3>gconstpointer</h3>
<pre class="programlisting">typedef const void *gconstpointer;
</pre>
<p>
An untyped pointer to constant data.
The data pointed to should not be changed.
</p>
<p>
This is typically used in function prototypes to indicate that the
data pointed to will not be altered by the function.
</p>
</div>
<hr>
<div class="refsect2" title="gchar">
<a name="gchar"></a><h3>gchar</h3>
<pre class="programlisting">typedef char   gchar;
</pre>
<p>
Corresponds to the standard C <span class="type">char</span> type.
</p>
</div>
<hr>
<div class="refsect2" title="guchar">
<a name="guchar"></a><h3>guchar</h3>
<pre class="programlisting">typedef unsigned char   guchar;
</pre>
<p>
Corresponds to the standard C <span class="type">unsigned char</span> type.
</p>
</div>
<hr>
<div class="refsect2" title="gint">
<a name="gint"></a><h3>gint</h3>
<pre class="programlisting">typedef int    gint;
</pre>
<p>
Corresponds to the standard C <span class="type">int</span> type.
Values of this type can range from <a class="link" href="glib-Limits-of-Basic-Types.html#G-MININT:CAPS" title="G_MININT"><span class="type">G_MININT</span></a> to <a class="link" href="glib-Limits-of-Basic-Types.html#G-MAXINT:CAPS" title="G_MAXINT"><span class="type">G_MAXINT</span></a>.
</p>
</div>
<hr>
<div class="refsect2" title="guint">
<a name="guint"></a><h3>guint</h3>
<pre class="programlisting">typedef unsigned int    guint;
</pre>
<p>
Corresponds to the standard C <span class="type">unsigned int</span> type.
Values of this type can range from 0 to <a class="link" href="glib-Limits-of-Basic-Types.html#G-MAXUINT:CAPS" title="G_MAXUINT"><span class="type">G_MAXUINT</span></a>.
</p>
</div>
<hr>
<div class="refsect2" title="gshort">
<a name="gshort"></a><h3>gshort</h3>
<pre class="programlisting">typedef short  gshort;
</pre>
<p>
Corresponds to the standard C <span class="type">short</span> type.
Values of this type can range from <a class="link" href="glib-Limits-of-Basic-Types.html#G-MINSHORT:CAPS" title="G_MINSHORT"><span class="type">G_MINSHORT</span></a> to <a class="link" href="glib-Limits-of-Basic-Types.html#G-MAXSHORT:CAPS" title="G_MAXSHORT"><span class="type">G_MAXSHORT</span></a>.
</p>
</div>
<hr>
<div class="refsect2" title="gushort">
<a name="gushort"></a><h3>gushort</h3>
<pre class="programlisting">typedef unsigned short  gushort;
</pre>
<p>
Corresponds to the standard C <span class="type">unsigned short</span> type.
Values of this type can range from 0 to <a class="link" href="glib-Limits-of-Basic-Types.html#G-MAXUSHORT:CAPS" title="G_MAXUSHORT"><span class="type">G_MAXUSHORT</span></a>.
</p>
</div>
<hr>
<div class="refsect2" title="glong">
<a name="glong"></a><h3>glong</h3>
<pre class="programlisting">typedef long   glong;
</pre>
<p>
Corresponds to the standard C <span class="type">long</span> type.
Values of this type can range from <a class="link" href="glib-Limits-of-Basic-Types.html#G-MINLONG:CAPS" title="G_MINLONG"><span class="type">G_MINLONG</span></a> to <a class="link" href="glib-Limits-of-Basic-Types.html#G-MAXLONG:CAPS" title="G_MAXLONG"><span class="type">G_MAXLONG</span></a>.
</p>
</div>
<hr>
<div class="refsect2" title="gulong">
<a name="gulong"></a><h3>gulong</h3>
<pre class="programlisting">typedef unsigned long   gulong;
</pre>
<p>
Corresponds to the standard C <span class="type">unsigned long</span> type.
Values of this type can range from 0 to <a class="link" href="glib-Limits-of-Basic-Types.html#G-MAXULONG:CAPS" title="G_MAXULONG"><span class="type">G_MAXULONG</span></a>.
</p>
</div>
<hr>
<div class="refsect2" title="gint8">
<a name="gint8"></a><h3>gint8</h3>
<pre class="programlisting">typedef signed char gint8;
</pre>
<p>
A signed integer guaranteed to be 8 bits on all platforms.
Values of this type can range from <a class="link" href="glib-Limits-of-Basic-Types.html#G-MININT8:CAPS" title="G_MININT8"><span class="type">G_MININT8</span></a> (= -128) to
<a class="link" href="glib-Limits-of-Basic-Types.html#G-MAXINT8:CAPS" title="G_MAXINT8"><span class="type">G_MAXINT8</span></a> (= 127).
</p>
</div>
<hr>
<div class="refsect2" title="guint8">
<a name="guint8"></a><h3>guint8</h3>
<pre class="programlisting">typedef unsigned char guint8;
</pre>
<p>
An unsigned integer guaranteed to be 8 bits on all platforms.
Values of this type can range from 0 to <a class="link" href="glib-Limits-of-Basic-Types.html#G-MAXUINT8:CAPS" title="G_MAXUINT8"><span class="type">G_MAXUINT8</span></a> (= 255).
</p>
</div>
<hr>
<div class="refsect2" title="gint16">
<a name="gint16"></a><h3>gint16</h3>
<pre class="programlisting">typedef signed short gint16;
</pre>
<p>
A signed integer guaranteed to be 16 bits on all platforms.
Values of this type can range from <a class="link" href="glib-Limits-of-Basic-Types.html#G-MININT16:CAPS" title="G_MININT16"><span class="type">G_MININT16</span></a> (= -32,768) to
<a class="link" href="glib-Limits-of-Basic-Types.html#G-MAXINT16:CAPS" title="G_MAXINT16"><span class="type">G_MAXINT16</span></a> (= 32,767).
</p>
<p>
To print or scan values of this type, use
<a class="link" href="glib-Miscellaneous-Macros.html#G-GINT16-MODIFIER:CAPS" title="G_GINT16_MODIFIER"><code class="literal">G_GINT16_MODIFIER</code></a> and/or <a class="link" href="glib-Miscellaneous-Macros.html#G-GINT16-FORMAT:CAPS" title="G_GINT16_FORMAT"><code class="literal">G_GINT16_FORMAT</code></a>.
</p>
</div>
<hr>
<div class="refsect2" title="guint16">
<a name="guint16"></a><h3>guint16</h3>
<pre class="programlisting">typedef unsigned short guint16;
</pre>
<p>
An unsigned integer guaranteed to be 16 bits on all platforms.
Values of this type can range from 0 to <a class="link" href="glib-Limits-of-Basic-Types.html#G-MAXUINT16:CAPS" title="G_MAXUINT16"><span class="type">G_MAXUINT16</span></a> (= 65,535).
</p>
<p>
To print or scan values of this type, use
<a class="link" href="glib-Miscellaneous-Macros.html#G-GINT16-MODIFIER:CAPS" title="G_GINT16_MODIFIER"><code class="literal">G_GINT16_MODIFIER</code></a> and/or <a class="link" href="glib-Miscellaneous-Macros.html#G-GUINT16-FORMAT:CAPS" title="G_GUINT16_FORMAT"><code class="literal">G_GUINT16_FORMAT</code></a>.
</p>
</div>
<hr>
<div class="refsect2" title="gint32">
<a name="gint32"></a><h3>gint32</h3>
<pre class="programlisting">typedef signed int gint32;
</pre>
<p>
A signed integer guaranteed to be 32 bits on all platforms.
Values of this type can range from <a class="link" href="glib-Limits-of-Basic-Types.html#G-MININT32:CAPS" title="G_MININT32"><span class="type">G_MININT32</span></a> (= -2,147,483,648) to
<a class="link" href="glib-Limits-of-Basic-Types.html#G-MAXINT32:CAPS" title="G_MAXINT32"><span class="type">G_MAXINT32</span></a> (= 2,147,483,647).
</p>
<p>
To print or scan values of this type, use
<a class="link" href="glib-Miscellaneous-Macros.html#G-GINT32-MODIFIER:CAPS" title="G_GINT32_MODIFIER"><code class="literal">G_GINT32_MODIFIER</code></a> and/or <a class="link" href="glib-Miscellaneous-Macros.html#G-GINT32-FORMAT:CAPS" title="G_GINT32_FORMAT"><code class="literal">G_GINT32_FORMAT</code></a>.
</p>
</div>
<hr>
<div class="refsect2" title="guint32">
<a name="guint32"></a><h3>guint32</h3>
<pre class="programlisting">typedef unsigned int guint32;
</pre>
<p>
An unsigned integer guaranteed to be 32 bits on all platforms.
Values of this type can range from 0 to <a class="link" href="glib-Limits-of-Basic-Types.html#G-MAXUINT32:CAPS" title="G_MAXUINT32"><span class="type">G_MAXUINT32</span></a> (= 4,294,967,295).
</p>
<p>
To print or scan values of this type, use
<a class="link" href="glib-Miscellaneous-Macros.html#G-GINT32-MODIFIER:CAPS" title="G_GINT32_MODIFIER"><code class="literal">G_GINT32_MODIFIER</code></a> and/or <a class="link" href="glib-Miscellaneous-Macros.html#G-GUINT32-FORMAT:CAPS" title="G_GUINT32_FORMAT"><code class="literal">G_GUINT32_FORMAT</code></a>.
</p>
</div>
<hr>
<div class="refsect2" title="G_HAVE_GINT64">
<a name="G-HAVE-GINT64:CAPS"></a><h3>G_HAVE_GINT64</h3>
<pre class="programlisting">#define G_HAVE_GINT64 1          /* deprecated, always true */
</pre>
<div class="warning" title="Warning" style="margin-left: 0.5in; margin-right: 0.5in;">
<h3 class="title">Warning</h3>
<p><code class="literal">G_HAVE_GINT64</code> is deprecated and should not be used in newly-written code. GLib requires 64-bit integer support since version 2.0, therefore
<a class="link" href="glib-Basic-Types.html#G-HAVE-GINT64:CAPS" title="G_HAVE_GINT64"><code class="literal">G_HAVE_GINT64</code></a> is <span class="emphasis"><em>always</em></span> defined.</p>
</div>
<p>
This macro is defined if 64-bit signed and unsigned integers are available
on the platform.
</p>
</div>
<hr>
<div class="refsect2" title="gint64">
<a name="gint64"></a><h3>gint64</h3>
<pre class="programlisting">typedef signed long gint64;
</pre>
<p>
A signed integer guaranteed to be 64 bits on all platforms.
Values of this type can range from <a class="link" href="glib-Limits-of-Basic-Types.html#G-MININT64:CAPS" title="G_MININT64"><span class="type">G_MININT64</span></a> (= -9,223,372,036,854,775,808) to
<a class="link" href="glib-Limits-of-Basic-Types.html#G-MAXINT64:CAPS" title="G_MAXINT64"><span class="type">G_MAXINT64</span></a> (= 9,223,372,036,854,775,807).
</p>
<p>
To print or scan values of this type, use
<a class="link" href="glib-Miscellaneous-Macros.html#G-GINT64-MODIFIER:CAPS" title="G_GINT64_MODIFIER"><code class="literal">G_GINT64_MODIFIER</code></a> and/or <a class="link" href="glib-Miscellaneous-Macros.html#G-GINT64-FORMAT:CAPS" title="G_GINT64_FORMAT"><code class="literal">G_GINT64_FORMAT</code></a>.
</p>
</div>
<hr>
<div class="refsect2" title="guint64">
<a name="guint64"></a><h3>guint64</h3>
<pre class="programlisting">typedef unsigned long guint64;
</pre>
<p>
An unsigned integer guaranteed to be 64 bits on all platforms.
Values of this type can range from 0 to <a class="link" href="glib-Limits-of-Basic-Types.html#G-MAXUINT64:CAPS" title="G_MAXUINT64"><span class="type">G_MAXUINT64</span></a> (= 18,446,744,073,709,551,615).
</p>
<p>
To print or scan values of this type, use
<a class="link" href="glib-Miscellaneous-Macros.html#G-GINT64-MODIFIER:CAPS" title="G_GINT64_MODIFIER"><code class="literal">G_GINT64_MODIFIER</code></a> and/or <a class="link" href="glib-Miscellaneous-Macros.html#G-GUINT64-FORMAT:CAPS" title="G_GUINT64_FORMAT"><code class="literal">G_GUINT64_FORMAT</code></a>.
</p>
</div>
<hr>
<div class="refsect2" title="G_GINT64_CONSTANT()">
<a name="G-GINT64-CONSTANT:CAPS"></a><h3>G_GINT64_CONSTANT()</h3>
<pre class="programlisting">#define G_GINT64_CONSTANT(val) (val##L)
</pre>
<p>
This macro is used to insert 64-bit integer literals into the source code.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td><p><span class="term"><em class="parameter"><code>val</code></em> :</span></p></td>
<td>a literal integer value, e.g. 0x1d636b02300a7aa7.
</td>
</tr></tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="G_GUINT64_CONSTANT()">
<a name="G-GUINT64-CONSTANT:CAPS"></a><h3>G_GUINT64_CONSTANT()</h3>
<pre class="programlisting">#define G_GUINT64_CONSTANT(val) (val##UL)
</pre>
<p>
This macro is used to insert 64-bit unsigned integer literals into the
source code.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td><p><span class="term"><em class="parameter"><code>val</code></em> :</span></p></td>
<td>a literal integer value, e.g. 0x1d636b02300a7aa7U.
</td>
</tr></tbody>
</table></div>
<p class="since">Since 2.10</p>
</div>
<hr>
<div class="refsect2" title="gfloat">
<a name="gfloat"></a><h3>gfloat</h3>
<pre class="programlisting">typedef float   gfloat;
</pre>
<p>
Corresponds to the standard C <span class="type">float</span> type.
Values of this type can range from -<a class="link" href="glib-Limits-of-Basic-Types.html#G-MAXFLOAT:CAPS" title="G_MAXFLOAT"><span class="type">G_MAXFLOAT</span></a> to <a class="link" href="glib-Limits-of-Basic-Types.html#G-MAXFLOAT:CAPS" title="G_MAXFLOAT"><span class="type">G_MAXFLOAT</span></a>.
</p>
</div>
<hr>
<div class="refsect2" title="gdouble">
<a name="gdouble"></a><h3>gdouble</h3>
<pre class="programlisting">typedef double  gdouble;
</pre>
<p>
Corresponds to the standard C <span class="type">double</span> type.
Values of this type can range from -<a class="link" href="glib-Limits-of-Basic-Types.html#G-MAXDOUBLE:CAPS" title="G_MAXDOUBLE"><span class="type">G_MAXDOUBLE</span></a> to <a class="link" href="glib-Limits-of-Basic-Types.html#G-MAXDOUBLE:CAPS" title="G_MAXDOUBLE"><span class="type">G_MAXDOUBLE</span></a>.
</p>
</div>
<hr>
<div class="refsect2" title="gsize">
<a name="gsize"></a><h3>gsize</h3>
<pre class="programlisting">typedef unsigned long gsize;
</pre>
<p>
An unsigned integer type of the result of the sizeof operator, corresponding
to the size_t type defined in C99. This type is wide enough to hold the numeric
value of a pointer, so it is usually 32bit wide on a 32bit platform and
64bit wide on a 64bit platform.
Values of this type can range from 0 to <a class="link" href="glib-Limits-of-Basic-Types.html#G-MAXSIZE:CAPS" title="G_MAXSIZE"><span class="type">G_MAXSIZE</span></a>.
</p>
<p>
To print or scan values of this type, use
<a class="link" href="glib-Miscellaneous-Macros.html#G-GSIZE-MODIFIER:CAPS" title="G_GSIZE_MODIFIER"><code class="literal">G_GSIZE_MODIFIER</code></a> and/or <a class="link" href="glib-Miscellaneous-Macros.html#G-GSIZE-FORMAT:CAPS" title="G_GSIZE_FORMAT"><code class="literal">G_GSIZE_FORMAT</code></a>.
</p>
</div>
<hr>
<div class="refsect2" title="gssize">
<a name="gssize"></a><h3>gssize</h3>
<pre class="programlisting">typedef signed long gssize;
</pre>
<p>
A signed variant of gsize, corresponding to the ssize_t defined on most platforms.
Values of this type can range from <a class="link" href="glib-Limits-of-Basic-Types.html#G-MINSSIZE:CAPS" title="G_MINSSIZE"><span class="type">G_MINSSIZE</span></a> to <a class="link" href="glib-Limits-of-Basic-Types.html#G-MAXSSIZE:CAPS" title="G_MAXSSIZE"><span class="type">G_MAXSSIZE</span></a>.
</p>
<p>
To print or scan values of this type, use
<a class="link" href="glib-Miscellaneous-Macros.html#G-GSIZE-MODIFIER:CAPS" title="G_GSIZE_MODIFIER"><code class="literal">G_GSIZE_MODIFIER</code></a> and/or <a class="link" href="glib-Miscellaneous-Macros.html#G-GSSIZE-FORMAT:CAPS" title="G_GSSIZE_FORMAT"><code class="literal">G_GSSIZE_FORMAT</code></a>.
</p>
</div>
<hr>
<div class="refsect2" title="goffset">
<a name="goffset"></a><h3>goffset</h3>
<pre class="programlisting">typedef gint64 goffset;
</pre>
<p>
A signed integer type that is used for file offsets, corresponding to the
C99 type off64_t.
Values of this type can range from <a class="link" href="glib-Limits-of-Basic-Types.html#G-MINOFFSET:CAPS" title="G_MINOFFSET"><span class="type">G_MINOFFSET</span></a> to <a class="link" href="glib-Limits-of-Basic-Types.html#G-MAXOFFSET:CAPS" title="G_MAXOFFSET"><span class="type">G_MAXOFFSET</span></a>.
</p>
<p>
To print or scan values of this type, use
<a class="link" href="glib-Miscellaneous-Macros.html#G-GOFFSET-MODIFIER:CAPS" title="G_GOFFSET_MODIFIER"><code class="literal">G_GOFFSET_MODIFIER</code></a> and/or <a class="link" href="glib-Miscellaneous-Macros.html#G-GOFFSET-FORMAT:CAPS" title="G_GOFFSET_FORMAT"><code class="literal">G_GOFFSET_FORMAT</code></a>.
</p>
Since: 2.14</div>
<hr>
<div class="refsect2" title="G_GOFFSET_CONSTANT()">
<a name="G-GOFFSET-CONSTANT:CAPS"></a><h3>G_GOFFSET_CONSTANT()</h3>
<pre class="programlisting">#define G_GOFFSET_CONSTANT(val) G_GINT64_CONSTANT(val)
</pre>
<p>
This macro is used to insert <a class="link" href="glib-Basic-Types.html#goffset" title="goffset"><span class="type">goffset</span></a> 64-bit integer literals into the source code.
See also <a class="link" href="glib-Basic-Types.html#G-GINT64-CONSTANT:CAPS" title="G_GINT64_CONSTANT()"><span class="type">G_GINT64_CONSTANT</span></a>.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td><p><span class="term"><em class="parameter"><code>val</code></em> :</span></p></td>
<td>a literal integer value, e.g. 0x1d636b02300a7aa7.
Since: 2.20
</td>
</tr></tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="gintptr">
<a name="gintptr"></a><h3>gintptr</h3>
<pre class="programlisting">typedef signed long gintptr;
</pre>
<p>
Corresponds to the C99 type <span class="type">intptr_t</span>, a signed integer type that
can hold any pointer.
</p>
<p>
To print or scan values of this type, use
<a class="link" href="glib-Miscellaneous-Macros.html#G-GINTPTR-MODIFIER:CAPS" title="G_GINTPTR_MODIFIER"><code class="literal">G_GINTPTR_MODIFIER</code></a> and/or <a class="link" href="glib-Miscellaneous-Macros.html#G-GINTPTR-FORMAT:CAPS" title="G_GINTPTR_FORMAT"><code class="literal">G_GINTPTR_FORMAT</code></a>.
</p>
Since: 2.18</div>
<hr>
<div class="refsect2" title="guintptr">
<a name="guintptr"></a><h3>guintptr</h3>
<pre class="programlisting">typedef unsigned long guintptr;
</pre>
<p>
Corresponds to the C99 type <span class="type">uintptr_t</span>, an unsigned integer type that
can hold any pointer.
</p>
<p>
To print or scan values of this type, use
<a class="link" href="glib-Miscellaneous-Macros.html#G-GINTPTR-MODIFIER:CAPS" title="G_GINTPTR_MODIFIER"><code class="literal">G_GINTPTR_MODIFIER</code></a> and/or <a class="link" href="glib-Miscellaneous-Macros.html#G-GUINTPTR-FORMAT:CAPS" title="G_GUINTPTR_FORMAT"><code class="literal">G_GUINTPTR_FORMAT</code></a>.
</p>
Since: 2.18</div>
</div>
</div>
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